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    • 38. 发明申请
    • METHOD AND APPARATUS FOR QUANTITATIVE DETERMINATION OF SEDIMENT PHYSICAL PROPERTIES OF SEABED AND LAYERED SUBBOTTOM USING SINGLE-CHANNEL SEISMIC-REFLECTION PROFILING DATA
    • 使用单通道地震反射分析数据定量确定海底和层状分层的物理特性的方法和装置
    • US20080040043A1
    • 2008-02-14
    • US11678306
    • 2007-02-23
    • Klaus LeurerColin Brown
    • Klaus LeurerColin Brown
    • G01V1/38
    • G01V1/306
    • A method for the quantitative characterization of a seabed sediment composition and a seabed's layered subbottom structure from at least one normal-incidence, single-channel reflection acoustic amplitude time series seismogram is disclosed. The method detects a plurality of reflections from subbottom interfaces in said seismograms, determines the traveltime, the polarity and the reflectivity of each detected reflection, determines the intrinsic attenuation of the sediment layer between pairs of adjacent reflections, and determines the acoustic properties, layer thicknesses and material properties of the seabed's layered subbottom structure as a function of said traveltimes, polarities and reflectivities of the detected reflections and said intrinsic attenuation of the sediment layer between pairs of adjacent reflections. A forward model describing the physical relationship between the material properties and the acoustic properties of seabed sediments is also disclosed.
    • 公开了一种用于从至少一个法向入射单声道反射声振幅时间序列地震图定量表征海床沉积物组成和海床分层底板结构的方法。 该方法在所述地震图中检测来自底部界面的多次反射,确定每个检测反射的行进时间,极性和反射率,确定相邻反射对之间的沉积物层的固有衰减,并确定声学性质,层厚度 以及作为所检测的反射的所述旅行时间,极性和反射率以及相邻反射对之间的沉积物层的固有衰减的函数的海床分层底部结构的材料性质。 还公开了描述海底沉积物的材料性质和声学性质之间的物理关系的前向模型。
    • 39. 发明申请
    • Vapour dispersion
    • 蒸气分散
    • US20070098376A1
    • 2007-05-03
    • US10561753
    • 2004-06-17
    • Colin BrownGuy Naish
    • Colin BrownGuy Naish
    • A61L9/00A61L9/03
    • A61L9/03A01M1/2077A61L9/02
    • An apparatus adapted to transmit an active substance in the vapour phase to an atmosphere, comprising an active substance incorporated in a sublimable carrier substance (12) and a heating element (4) that interfaces with only part of the total sublimable carrier substance, carrier substance and heating element being so arranged that the sublimable carrier substance subliming at the heating element/sublimable carrier substance interface is replaced by further sublimable carrier substance. The apparatus is not prone to spillage, as are current volatile liquid-based apparatus. It also allows the easy observation of the approaching end of life of the carrier substance/active substance and its need for replacement, so that continuity of transmission is assured.
    • 一种适于将气相中的活性物质传输到大气中的装置,其包括结合在升华载体物质(12)中的活性物质和仅与总可升华载体物质的一部分相接触的加热元件(4),载体物质 并且加热元件被布置成使得在加热元件/升华载体物质界面处升华的升华载体物质被另外的升华载体物质替代。 该设备不容易溢出,如当前易挥发的基于液体的设备。 它还可以容易地观察载体物质/活性物质接近的使用寿命及其更换的需要,从而确保传输的连续性。
    • 40. 发明申请
    • Multi-subband frequency hopping communication system and method
    • 多子频段跳频通信系统及方法
    • US20050249266A1
    • 2005-11-10
    • US11119780
    • 2005-05-03
    • Colin BrownPhilip Vigneron
    • Colin BrownPhilip Vigneron
    • H04B1/713H04B7/005H04J13/06H04L27/26
    • H04B1/713H04K3/224H04K3/25H04L27/2601
    • The invention provides an adaptive frequency hopping spread-spectrum (FHSS) transmission system and method, which efficiently utilizes available transmission bandwidth, whilst providing robustness to jamming techniques in wireless communication systems. The proposed technique operates by transmitting a wide-band signal over multiple, single-carrier, parallel transmission subbands, which may occupy non-contiguous frequency regions. The proposed scheme exhibits significant gain in error rate performance, as compared to a data rate equivalent single-subband system in the presence of signal jamming and/or interference without a reduction in the transmission data rate nor an increase in transmitter power. In addition, the proposed system and method are adaptive and enable more efficient use of the available bandwidth for communicating, thus increasing the overall bandwidth utilization of the system.
    • 本发明提供一种自适应跳频扩频(FHSS)传输系统和方法,其有效地利用可用的传输带宽,同时为无线通信系统中的干扰技术提供鲁棒性。 所提出的技术通过在可能占据非连续频率区域的多个单载波并行传输子带上发送宽带信号来进行操作。 与存在信号干扰和/或干扰的数据速率等效单子系统相比,所提出的方案在错误率性能方面表现出显着的增益,而不会降低传输数据速率,也不增加发射机功率。 此外,所提出的系统和方法是自适应的,并且能够更有效地利用可用带宽进行通信,从而增加系统的总体带宽利用率。